Beating engine



May 6 i924.

R. J. MARX BEAI'ING ENGINE Filed Jan. 18. l922 lai-2,93

ArtNr ROBERT J'. MARX, OfF LONDON, ENGLAND.

BEATING- ENGINE.

Application filed January 18, 1922. Serial No. 530,014.

To all 'whom t may concer/n Beit known that I, ROBE-nr J. MARX, a subject of the King of Great Britain, residing at London, England, have invented certain new and useful Improvements in Beating Engines, of which the following is a specification.

This invention relates to beating engines used in paper making and particularly that type of beater which has a spiral channel or trough whereby the stock passing under the beater roll .is elevated thereby and passes from the roll to the trough through which it iows and because of the spiral formation of the trough, is returned to pass beneath the roll. The object of the invention is to make certain improvements in said form or type of beater with a view to more definitely urging or accelerating the passage of the stock along the trough by more smoothly changing its direction of iow from the roll into and along` the trough; with a view to preventing the iowing over the trough Walls by the stock; and with a view to lubricating the trough to permit the stock to pass more easily therethrough or therealong.

The invention consists essentially in so treating or forming that defiector part of the wall of the trough extending at substantially right angles to and above the iow of the stock or stuff from the top of the beater roll so that no stock can flow over said wall and so that the direction of How of the stock from the top of the beater roll is so changed that it is not only directed into the trough but that the weight and pressure of the oncoming stock presses upon the preceding stock and co-acts with the deflector part of the wall whereby the iow of the stock in the deflected direction is accelerated. The deflector (which preferably but not necessarily is a part of the wall) is so shaped that the weight and pressure of any stock from the rolll which piles up thereagainst is also used to accelerate the flow of the stock along the trough. Furthermore, I may use as a part of my invention, means for lubricating the trough to facilitate the flowV of the stock therealong, which lubricating means is preferably but not necessarily associated with a doctor for the roll.

I prefer to employ a doctor mounted on a support in such a position in relation to the roll, that it aids in delecting the stock into thechannel, while it also prevents the stock re-entering between the roll bars.

I have disclosed herein the preferred einbodiment of my invention, which is the best of which I am at present advised, but it is to be understood that this form has been chosen for the purposes of illustration only and should not be taken in any sense as limiting for obviously, my invention is capable of a number of different embodiments without departing from the spirit and scope thereof.

The embodiment ofmy invention chosen for disclosure is illustrated in the accompanying drawings in which- Figure l is a side elevation of my device with parts broken away to show some of the interior construction.

Figure 2 is a plan view of my beater.

Figure 3 is a partial sectional view through the cowl or deiiector element.

As my invention relates to the means for acting upon the stock or stuff as or just after it comes from the top of theJ beater roll, it is unnecessary to describe all the elements of the beater except to say it has the usual beater roll 11, the bed plate 12, wherein the beater roll is adapted to carry the stock, after it passes the bed-plate, up and delivers the stock from the top of the roll to a spiral trough or channel C, on which the stock is conveyed back to the bedplate beneath the roll. The roll is provided with a cover 13,

lar in plan view and the inner periphery thereof forms a substantially cam-shaped or eccentric-shaped mid-feather M. The stock outlet from the vat is shown at O. V

The channel C which is substantially U- shaped in cross section terminates at its upper end in a cowl-like element or defiector substantially the shape of a hollow truncated conc closed at its upper end, and open at its side and larger end. This ,cowl-like deflector D is very important and it may be said to be comprised by the bottom 28, one side wall 14, and the closure Wall 15, of the 11pper end of the trough C, together, with a curved cover or top 16. In other words, the upper part of the trough C; is covered over and the cover-over part thereof forms my cowl-like element or hollow truncated coneshaped element. The side wall 14 and the top 16 of the trough C, forming a part of the cone-shaped element is in effect a deflector and it is desired to state that it is its des (itl fleeting action that is desired so that either the wall and top themselves can be used for this function or there could be used a separate deflector having the same function. The side wall 14 and top 16 are or may be said to be an extension of wall of the trough C.

The cowl-like or cone-shaped element D then has an inlet opening 17, in its side into which stock Hows from the top of the beater, and has an outlet 18, merging into the channel ortrough C, and the general longitudinal center of the cowl element eX- tends substantially parallel to the axis of the beater roll, whereby the inlet17 of the cowl is substantially at right angles to the outlet thereof. The upper closed end of the cowl or cone element is supported from the Side walls of thev vat 19 by means of web 20. Further, the side wall 14C of the cowl curves into the top 16 thereof to present a smooth deiiecting surface to the stock. The top 16 of the cowl is provided with lugs 21, which register with similar lugs 22, on the cover for the roll, whereby the top 16, and cover 13 may be secured together.

Adjacent the bottom 23, of the cowl element, I provide a doctor 24, for the roll 11, for positively removing any stock which may adhere to the roll, and the doctor is so placed as to direct the stoel; so removed toward the bottom of the cowl. The doctor likewise prevents by its position the re-entry of any accumulated stulp into the bars of the beater roll. Under the doctor, I provide a water-c0nduit 25, which may be a perforated pipe or other such water supplying means, adapted to supply water to the bottom of the cowl, to lubricate or facilitate the passage or flow of the stock therealong and therethrough. The doctor and the pipe are located in or on a support 26, and the support may either be perforated or slotted to let the water from the pipe 25, therethrough to the trough. Any suitable water supply 27 and water control can be used in connection with the pipe.

The doctor in this beater is one of its most essential features, and as a matter of fact if there were no doctor, the beater would not work on account of excessive spitting7 of the roll, that is, the roll would take a lot of stu back to the entrance channel which. would not only materially interfere with the circulation, vbut would also pro nounced-ly interfere withthe beating result.

When hitherto doctors were used `with beaters they had a'totally different function, namely, theywere provided to preventV the stui'fpassing.v over the apexof the roll and served las deflectors for the stuff and to directfit in the opposite way over the backfallin the beater.

In 4this case the doctor serves to make a practically .stuff tightA connection between thecowl and the revolving roll, and in addi tion, to free the roll bars from any stuft` that may be adhering thereto, and finally to prevent spitting7 of the roll.

The operation of the beater comprising an embodiment of my invention is as follows:

The stock or stuft1 is placed in the vat or trough 19 and the beater roll, rotated as usual, whereupon the stock is caused to pass under the beater roll and over the bed plate from whence it is carried upwardly by the roll and passes from the top of the roll into the cowlor cone-element. This element changes the direction of iiow of the stock from the roll and accelerates the passage of the stock through and along the spiral trough, until the stock is returned to pass under the roll. The action is repeated as long as desirable when the stock is let out through the vat outlet O.

However, this invention relates to accelerating and facilitating the passage of the stock from the top of the beater roll through the trough.V The means for accomplishing this result have already been described but I consider the invention to reside in the bringing about of the result` as much as in the particular means by which I obtain the result. The stock from the top of the roll Hows through the openings 17 into the cowl element D until it contacts with the side wall 14 which being inclined to the direction of flow of the stock, deflects the stock flow or changes its direction to start it on its passage along and through the trough C. Its change of direction and passage along the trough is made easier by the downward inclination of the bottom 23 of the cowl and by the angular location of the wall 14;, whereby the pressure of the stock from the roll on-coming against the stock in contact with the deflector D readily forces the deflected stock down the incline of the bottom and along the trough. The tendency of the oli-coming stock is to pile up against the wall 14 but the top 16 prevents it from flowing over the wall 11i and further the curved top compresses the piled up stock, or otherwise causes the pressure of the piled up stock to further act to force` the deflected stock along the trough. The

passage of the deflected vstock along the trough is further facilitated by means of waterwhieh I apply to the trough from the conduit 25, which water, I find, tends to lubricate the trough whereby the stock will f more easily pass therethrough. The water means or conduit is placed in a supportfor.-

a doctor 24 which removes from the roll any stock which tends to adhere thereto and the.v

doctor delivers any stock it picks olf of the roll to the trough above the water or lubricant feed. Further by arranging the doctor over the water feed, the stock-in flowing over the doctor tends to spread the Water well over the bottom of the trough before the direction of the stock ow is changed, whereby lubrication of the whole bottom of the trough is assured.

What I claim is:

l. In combination in a beating engine, a beater roll, a spiral trough leading from top to bottom of said roll, whereby stock is conveyed from the top of the roll to the bottom thereof, tapered means for directing the stock from the roll into said trough and a doctor adjacent to the roll in the bottom of the tapered deflecting means.

2. In combination in a beating engine, a beater roll, a spiral trough having one end thereof lying substantially at right angles to the direction of stock flow from the top of the roll and its other end lying parallel to the direction of stock iow to the bottom of the roll, combined means for deflecting stock as it comes from the top of the roll into said trough and causing pressure of the on-coming stock from the roll to force the deected stock along said trough and water means for facilitating the movement of the stock along said trough.

3. In a beating engine, a roll, a trough, and a combined doctor for the roll and water feeding means for the trough.

4. As an article of manufacture, a beaterroll doctor, and a hollow support therefor.

5. As an article of manufacture, a beater roll doctor and a water conduit support therefor.

6. In combination in a beating engine, a beater roll, a practically U-sectioned spiral trough along which trough stock is conveyed, defiecting means for directing the stock from the roll into said trough, and a doctor at the lower end of the deiiecting means so arranged to form a practically stuff tight connection between the fixed delection means and the revolving beater roll.

In testimony whereof I have affixed my signature to this specification.

ROBERT J. MARX. 

